There are 3 kinds of page type within our theme: Page, Post, and Portfolio.
If you want to create a single portfolio(project) page, please use the Portfolio type post. Please go to “Portfolio > Add new” . Check more
Please make sure that the BM Content Builder plugin is installed/activated.
How to show these portfolios(Portfolio list), you could use the Page.
The Page is a default WordPress page type. The Page is usually for creating the Portfolio list, Frontpage, About, Cart, Checkout, and etc. Check more
The Post is a default WordPress page type. It is usually for a single blog article. Check more